/*
*Copyright 2021-2023 NERCIS
*
*Licensed under the Apache License, Version 2.0 (the "License");
*you may not use this file except in compliance with the License.
*You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
*Unless required by applicable law or agreed to in writing, software
*distributed under the License is distributed on an "AS IS" BASIS,
*WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*See the License for the specific language governing permissions and
*limitations under the License.
*/

package cn.ac.nercis.pes.community.support.validation;

import cn.ac.nercis.pes.community.support.validation.base.ValidatorBase;
import javafx.scene.control.ComboBoxBase;
import javafx.scene.control.TextInputControl;

/**
 * An example of required field validation, that is applied on text input
 *
 * @author Shadi Shaheen
 * @version 1.0
 * @since 2016-03-09
 */
public class RequiredFieldValidator extends ValidatorBase {
    public RequiredFieldValidator(String message) {
        super(message);
    }

    public RequiredFieldValidator() {
    }

    /**
     * {@inheritDoc}
     */
    @Override
    protected void eval() {
        if (srcControl.get() instanceof TextInputControl) {
            evalTextInputField();
        }
        if (srcControl.get() instanceof ComboBoxBase cbx) {
            evalComboBoxField(cbx);
        }
    }

    private void evalTextInputField() {
        TextInputControl textField = (TextInputControl) srcControl.get();
        if (textField.getText() == null || textField.getText().isEmpty()) {
            hasErrors.set(true);
        } else {
            hasErrors.set(false);
        }
    }

    private void evalComboBoxField(ComboBoxBase comboField) {
        Object value = comboField.getValue();
        hasErrors.set(value == null || value.toString().isEmpty());
    }
}